<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车</title>
	<%@ include file="/pages/common/head.jsp"%>
	<script type="text/javascript">
		$(function () {
			//给删除绑定单击事件
			$(".deleteItem").click(function () {
				let text = $(this).parents().find("td:first").text();
				return confirm("你确定要删除【" + text + "】吗？")
			});
			//给清空购物车绑定单击事件
			$("#clearId").click(function () {
				return confirm("你确定要清空购物车吗？")
			});
			//给输入框绑定change内容发生改变事件
			$(".updateCount").change(function () {
				let name = $(this).parents().find("td:nth-child(1)").text();
				let count = this.value;
				if (confirm("是否确定将【"+name+"】商品的数量修改为：【"+count+"】吗？")) {
					location.href = "cartServlet?action=updateCount&count=" + count + "&id=" + $(this).attr("bookId");
				} else {
					//defaultValue属性值是表单项Dom对象的属性。它表示默认的value属性值
					this.value = this.defaultValue;
				}
			});
		});
	</script>
</head>
<body>
<%--	${sessionScope.cart}--%>
	<div id="header">
			<img class="logo_img" alt="" src="static/img/logo.gif" >
			<span class="wel_word">购物车</span>
			<%@ include file="/pages/common/login_sucess_menu.jsp"%>
	</div>
	
	<div id="main">
	
		<table>
			<tr>
				<td>商品名称</td>
				<td>数量</td>
				<td>单价</td>
				<td>金额</td>
				<td>操作</td>
			</tr>
			<%--如果购物车不为空--%>
			<c:if test="${not empty sessionScope.cart.items}">
				<c:forEach items="${sessionScope.cart.items}" var="item">
					<tr>
						<td>${item.value.name}</td>
						<td>
							<input class="updateCount" bookId="${item.value.id}"
								   style="width: 80px" type="text" value="${item.value.count}"/>
						</td>
						<td>${item.value.price}</td>
						<td>${item.value.totalPrice}</td>
						<td><a class="deleteItem" href="cartServlet?action=deleteItem&id=${item.value.id}">删除</a></td>
					</tr>
				</c:forEach>
			</c:if>
			<%--如果购物车为空--%>
			<c:if test="${empty sessionScope.cart.items}">
				<tr>
					<td colspan="5"><a href="index.jsp">当前购物车为空</a></td>
				</tr>
			</c:if>

		</table>
		
		<div class="cart_info">
			<%--如果购物车非空则输出下列内容--%>
			<c:if test="${not empty sessionScope.cart.items}">
				<span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
				<span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
				<span class="cart_span"><a id="clearId" href="cartServlet?action=clear">清空购物车</a></span>
				<span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
			</c:if>

		</div>
	
	</div>
	<%--静态包含页脚内容--%>
	<%@ include file="/pages/common/footer.jsp"%>
</body>
</html>